Just back of the envelope calculation, according to my link the US emitted 400B tons total and China is emitting ~10.8B annually now, so that'd be 37 years with no growth. So yes, the US is in a really deep hole here.
This shows the US having per-capita emissions of roughly twice the EU and China (2017). I imagine it will be a good while until China catches up by that metric...
https://ourworldindata.org/co2-and-other-greenhouse-gas-emis...
edit: being nicer